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Study identifier: NCT03425643 Synced from ClinicalTrials.gov · August 02, 2026
● Active Not Recruiting

Efficacy and Safety of Pembrolizumab (MK-3475) With Platinum Doublet Chemotherapy as Neoadjuvant/Adjuvant Therapy for Participants With Resectable Stage II, IIIA, and Resectable IIIB (T3-4N2) Non-small Cell Lung Cancer (MK-3475-671/KEYNOTE-671)

Condition: Non-small Cell Lung Cancer  ·  Sponsor: Merck Sharp & Dohme LLC

PhasePhase 3
Planned participants797
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This trial will evaluate the safety and efficacy of pembrolizumab (MK-3475) in combination with platinum doublet neoadjuvant chemotherapy (NAC) before surgery \[neoadjuvant phase\], followed by pembrolizumab alone after surgery \[adjuvant phase\] in participants with resectable stage II, IIIA, and resectable IIIB (T3-4N2) non-small cell lung cancer (NSCLC). The primary hypotheses of this study are that neoadjuvant pembrolizumab (vs. placebo) in combination with NAC, followed by surgery and adjuvant pembrolizumab (vs. placebo) will improve: 1) event free survival (EFS) by biopsy assessed by local pathologist or by investigator-assessed imaging using Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1); and 2) overall survival (OS).

This description comes directly from the study's public registry record.

Talk to the study team

No contact information is available for this study as per the public registry record.

Always discuss trial participation with your own doctor first.

Locations (227)

Banner MD Anderson Cancer Center ( Site 0028)Gilbert, Arizona, United States
Western Regional Medical Center, Inc. ( Site 0050)Goodyear, Arizona, United States
University of Arizona Cancer Center - Dignity Health ( Site 0062)Phoenix, Arizona, United States
University of Arizona Cancer Center ( Site 0012)Tucson, Arizona, United States
Pacific Cancer Medical Center, Inc. ( Site 0004)Anaheim, California, United States
Providence Saint Joseph Medical Center ( Site 0061)Burbank, California, United States
Pacific Cancer Care ( Site 0035)Monterey, California, United States
John Wayne Cancer Institute ( Site 0049)Santa Monica, California, United States
St Joseph Heritage Healthcare ( Site 0040)Santa Rosa, California, United States
Stanford University, Stanford Cancer Center ( Site 0046)Stanford, California, United States
Hartford Hospital ( Site 0069)Hartford, Connecticut, United States
Helen F. Graham Cancer Center & Research Institute ( Site 0015)Newark, Delaware, United States

+ 215 more locations — full list on the registry record.

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